diff --git a/build-docker.sh b/build-docker.sh
index 4808691..c8fab5e 100755
--- a/build-docker.sh
+++ b/build-docker.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -eu
 
diff --git a/test-docker.sh b/test-docker.sh
index 2bedcae..81e820e 100755
--- a/test-docker.sh
+++ b/test-docker.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # Test Stow across multiple Perl versions, by executing the
 # Docker image built via build-docker.sh.